code: def list_available_models(self):
      pass
  
file_path: NeMo/nemo/collections/multimodal/models/nerf/base.py
imports: from nemo.core.classes.common import Serialization
  from nemo.core.classes.modelPT import ModelPT
label_desc: Use image node_id 3 for calling the NerfModelBase obj's underlying member method code with example usage: obj.list_available_models() without return types